//
//  Utils.m
//  parent
//
//  Created by 闫珍 on 15/5/19.
//  Copyright (c) 2015年 ci123. All rights reserved.
//

#import "Utils.h"

@implementation Utils
+(void)textFiled:(UITextField*)field padding:(NSUInteger)padding
{
     field.layer.sublayerTransform = CATransform3DMakeTranslation(padding, 0, 0);
}
+(NSString *) getURL:(NSString*)msg withParams:(NSDictionary*)params
{
    NSString *p_str = [JsonUtil convertDictionaryToJson:params];
    NSString *url = [NSString stringWithFormat:@"%@&message=%@&data=%@",SERVER_URL,msg,p_str];
    return url;
}
static bool outOfChina(double lat, double lon)
{
    if (lon < 72.004 || lon > 137.8347)
        return true;
    if (lat < 0.8293 || lat > 55.8271)
        return true;
    return false;
}
const double pi = 3.14159265358979324;

const double a = 6378245.0;
const double ee = 0.00669342162296594323;

+(double)transformLat:(double)x:(double) y
{
    
    double ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * sqrt(abs(x));
    ret += (20.0 * sin(6.0 * x * pi) + 20.0 * sin(2.0 * x * pi)) * 2.0 / 3.0;
    ret += (20.0 * sin(y * pi) + 40.0 * sin(y / 3.0 * pi)) * 2.0 / 3.0;
    ret += (160.0 * sin(y / 12.0 * pi) + 320 * sin(y * pi / 30.0)) * 2.0 / 3.0;
    return ret;
}

+(double)transformLon:(double)x:(double)y
{
    double ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * sqrt(abs(x));
    ret += (20.0 * sin(6.0 * x * pi) + 20.0 * sin(2.0 * x * pi)) * 2.0 / 3.0;
    ret += (20.0 * sin(x * pi) + 40.0 * sin(x / 3.0 * pi)) * 2.0 / 3.0;
    ret += (150.0 * sin(x / 12.0 * pi) + 300.0 * sin(x / 30.0 * pi)) * 2.0 / 3.0;
    return ret;
}
+(CLLocationCoordinate2D)transform:(CLLocationCoordinate2D)origin
{
    double wgLat = origin.latitude;
    double wgLon = origin.longitude;
    CLLocationCoordinate2D target;
    if (outOfChina(wgLat, wgLon))
    {
        target.latitude = wgLat;
        target.longitude = wgLon;
        return target;
    }
    double dLat = [Utils transformLat:(wgLon - 105.0):(wgLat - 35.0)];
    double dLon = [Utils transformLon:(wgLon - 105.0):(wgLat - 35.0)];
    double radLat = wgLat / 180.0 * pi;
    double magic = sin(radLat);
    magic = 1 - ee * magic * magic;
    double sqrtMagic = sqrt(magic);
    dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);
    dLon = (dLon * 180.0) / (a / sqrtMagic * cos(radLat) * pi);
    target.latitude = wgLat + dLat;
    target.longitude = wgLon + dLon;
    return target;
}

+(NSString*) defaultStringFromDic:(NSDictionary *)dic withKey:(NSString *)key
{
    if([NSNull null] == [dic objectForKey:key]){
        return @"";
    }else{
        return [dic objectForKey:key];
    }
}
+(NSInteger) defaultIntFromDic:(NSDictionary *)dic withKey:(NSString *)key
{
    if([NSNull null] == [dic objectForKey:key]){
        return 0;
    }else{
        return [[dic objectForKey:key] intValue];
    }
}

@end
